After Replacing the Green Tea Heroine, the Supporting Actress Turned Around

The Awakening of a Female Supporting Character

I would like to read a book similar to "The Supporting Girl Has a Turnaround After Taking Over the Heroine's Place". The heroine replaced the original heroine and wanted to change her life. At the same time, she was afraid of being found out that she was fake. As a result, the hero always liked the heroine. The hero is quite a loyal dog, okay?